To help meet the federal government's new fuel economy regulations for heavy trucks, engine makers are looking to improved engine oils, including lower-viscosity oils that can perform under more demanding conditions.
Earlier this month, a team was formed by the American Petroleum Institute to develop a new API oil-service category, to replace the current CJ-4. And for the first time, there will be two subcategories to deal with the issue of backward compatibility
Tags: Fuel and Oil